CN107816523A - Epicyclic train for the automatic transmission of vehicle - Google Patents
Epicyclic train for the automatic transmission of vehicle Download PDFInfo
- Publication number
- CN107816523A CN107816523A CN201611204722.4A CN201611204722A CN107816523A CN 107816523 A CN107816523 A CN 107816523A CN 201611204722 A CN201611204722 A CN 201611204722A CN 107816523 A CN107816523 A CN 107816523A
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- China
- Prior art keywords
- rotate element
- axle
- clutch
- rotate
- planetary gearsets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0069—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising ten forward speeds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2012—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with four sets of orbital gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2046—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with six engaging means
Abstract
The invention provides a kind of epicyclic train of the automatic transmission for vehicle, the epicyclic train includes：Input shaft, output shaft, four planetary gearsets, each planetary gearsets have three rotate elements, and six control elements for rotate element and case of transmission optionally to be interconnected respectively.This kind of epicyclic train can realize ten forward ranges and a reversing gear by operating four planetary gearsets and controlling six control elements.In addition, this kind of epicyclic train can improve driving stability.Especially, the driving quietness of vehicle can be improved by using the operating point positioned at the low rotary speed region of engine.
Description
The cross reference of related application
This application claims the Application No. 10-2016-0117351 submitted for 12nd in September in 2016 korean patent application
Priority and rights and interests, entire contents by quote merge in this article.
Technical field
The present invention relates to a kind of epicyclic train of the automatic transmission for vehicle.
Background technology
Statement in this section only provides the background information for being related to the present invention, and will not form prior art.
Generally, have been developed that the automatic transmission for realizing more gears, with strengthen fuel economy and improve can
Driving.The rise of oil price is then difficult to the fuel consumption for improving vehicle.
In the sense that, many researchs have been carried out, such as have mitigated weight by reducing size of engine and carry
High fuel economy, and ensure steerability and fuel economy by multiple gears of automatic transmission.
For more gears of automatic transmission, it will usually increase the quantity of internal part, this can influence installability, raw
Produce cost, weight and/or kinetic current efficiency.In this respect, it is expected to improve with more gears with small number of part
The fuel efficiency of automatic transmission.Recently 8-gear transmission is had been introduced into, and is developing to have and more keeping off
The epicyclic train for automatic transmission of position.
However, conventional 8-gear transmission generally comprises three to four planetary gearsets and five to seven controls
Element (friction element) processed, this may greatly influence the weight of vehicle.
In consideration of it, have attempted to be arranged planetary gearsets in parallel or wet type control element is substituted using claw-type clutch.
However, such arrangement possibly can not be widely applicable, and it easily can feel gearshift using claw-type clutch
Feel and be deteriorated.
The content of the invention
The invention provides a kind of epicyclic train of the automatic transmission for vehicle, its have ten forward ranges and
One reversing gear, so as to improve power transfer performance and fuel economy.
It can be included according to the epicyclic train of the automatic transmission for vehicle of one embodiment of the invention：It is defeated
Enter axle, it is configured to the moment of torsion for receiving engine；Output shaft, it is configured as output to the moment of torsion changed；First planetary gearsets,
It has the first rotate element, the second rotate element and the 3rd rotate element；Second planetary gearsets, it has the 4th rotation member
Part, the 5th rotate element and the 6th rotate element；Third planet gear train, it has the 7th rotate element, the 8th rotate element
With the 9th rotate element；Fourth planet gear train, it has the tenth rotate element, the 11st rotate element and the 12nd rotation member
Part；First axle, it is connected to the first rotate element；Second axle, it is connected to the second rotate element and the 4th rotate element, and
It is connected to input shaft；3rd axle, it is connected to the 3rd rotate element, the 6th rotate element and the tenth rotate element；4th axle, its
It is connected to the 5th rotate element；5th axle, it is connected to the 7th rotate element, and be selectively connected to the first axle and
It is selectively connected to second axle；6th axle, it is connected to the 8th rotate element, and is selectively connected to described
Four axles；7th axle, it is connected to the 9th rotate element and the 11st rotate element, and is connected to output shaft；And the 8th axle,
It is connected to the 12nd rotate element, and is selectively connected to the 6th axle.
Each in first axle and the 8th axle can be selectively connected to case of transmission.
The first rotate element, the second rotate element and the 3rd rotate element of first planetary gearsets can be respectively first
Sun gear, the first planet carrier and the first ring gear.The 4th rotate element, the 5th rotate element and the 6th of second planetary gearsets
Rotate element can be respectively the second sun gear, the second planet carrier and the second ring gear.7th rotation of third planet gear train
Element, the 8th rotate element and the 9th rotate element can be respectively the 3rd sun gear, the third line carrier and the 3rd ring gear.The
The tenth rotate element, the 11st rotate element and the 12nd rotate element of four planetary gearsets can be respectively the 4th sun
Wheel, fourth line carrier and the 4th ring gear.
First planetary gearsets, the second planetary gearsets, third planet gear train and fourth planet gear train are from engine
Side can press the suitable of the first planetary gearsets, the second planetary gearsets, third planet gear train and fourth planet gear train respectively
Sequence is arranged.
The epicyclic train may further include：First clutch, it is selectively connected second axle and institute
State the 5th axle；Second clutch, it is selectively connected the first axle and the 5th axle；3rd clutch, its selectivity
Ground connects the 4th axle and the 6th axle；4th clutch, it is selectively connected the 6th axle and the 8th axle；
First brake, it is selectively connected the first axle and case of transmission；And second brake, it is selectively connected
8th axle and case of transmission.
It can include in the epicyclic train of the automatic transmission for vehicle of one embodiment of the invention：Input
Axle, it is configured to the moment of torsion for receiving engine；Output shaft, it is configured as output to the moment of torsion changed；First planetary gearsets, its
With the first rotate element, the second rotate element and the 3rd rotate element；Second planetary gearsets, it has the 4th rotation member
Part, the 5th rotate element and the 6th rotate element；Third planet gear train, it has the 7th rotate element, the 8th rotate element
With the 9th rotate element；And fourth planet gear train, it has the tenth rotate element, the 11st rotate element and the 12nd rotation
Turn element, wherein, the input shaft can be connected to the second rotate element, and the output shaft can be connected to the 11st rotation member
Part, the second rotate element can be connected to the 4th rotate element, and the 3rd rotate element can be connected to the 6th rotate element and
Ten rotate elements, the 9th rotate element can be connected to the 11st rotate element, and the 7th rotate element can be selectively connected
To the first rotate element and the second rotate element is selectively connected to, the 8th rotate element can be selectively connected to the 5th
Rotate element, and the 12nd rotate element can be selectively connected to the 8th rotate element.
Each in first rotate element and the 12nd rotate element can be selectively connected to case of transmission.
The first rotate element, the second rotate element and the 3rd rotate element of first planetary gearsets can be respectively first
Sun gear, the first planet carrier and the first ring gear.The 4th rotate element, the 5th rotate element and of second planetary gearsets
Six rotate elements can be respectively the second sun gear, the second planet carrier and the second ring gear.The 7th of third planet gear train
Rotate element, the 8th rotate element and the 9th rotate element can be respectively the 3rd sun gear, the third line carrier and the 3rd
Ring gear.The tenth rotate element, the 11st rotate element and the 12nd rotate element of fourth planet gear train can be distinguished
For the 4th sun gear, fourth line carrier and the 4th ring gear.
First planetary gearsets, the second planetary gearsets, third planet gear train and fourth planet gear train are from engine
Side can press the suitable of the first planetary gearsets, the second planetary gearsets, third planet gear train and fourth planet gear train respectively
Sequence is arranged.
The epicyclic train may further include：First clutch, its be selectively connected the 4th rotate element and
7th rotate element；Second clutch, it is selectively connected the first rotate element and the 7th rotate element；3rd clutch,
It is selectively connected the 5th rotate element and the 8th rotate element；4th clutch, it is selectively connected the 8th rotation member
Part and the 12nd rotate element；First brake, it is selectively connected the first rotate element and case of transmission；And second
Brake, it is selectively connected the 12nd rotate element and case of transmission.
According to the epicyclic train of one embodiment of the invention by operating four planetary gearsets and control six
Individual control element and can realize ten forward ranges and one reversing gear.
In addition, engine can be become appropriate for gear according to the epicyclic train of one embodiment of the invention
Rotary speed and improve driving stability.Especially, can be by using the behaviour positioned at the low rotary speed region of engine
Make point to improve the driving quietness of vehicle.
In addition, the drive efficiency of engine can be improved according to the epicyclic train of one embodiment of the invention, and
And power transfer performance and fuel efficiency can be improved.
According to description provided herein, the further scope of application will become obvious.It should be appreciated that explanation
The purpose that book and specific example are intended only to illustrate, and it is not intended to limit the scope of the present invention.
Brief description of the drawings
In order that the present invention can be well understood, its various forms will now be described, provide by way of example,
Reference is made to appended accompanying drawing, wherein：
Fig. 1 is the schematic diagram of epicyclic train；And
Fig. 2 is the operation diagram of each control element at each gear in epicyclic train.
Drawings described herein is for illustration purposes only, and is not intended as the model limiting the invention in any way
Enclose.
Embodiment
What following explanation was merely exemplary in itself, it is not intended that the limitation present invention, application or purposes.It should manage
Solution, through accompanying drawing, corresponding reference indicates similar or corresponding part and feature.
In the following description, because the title of part is mutually the same the title of part is divided into first, second etc.
To avoid confusion；Therefore, its order is not limited specifically.
Fig. 1 is the schematic diagram according to the epicyclic train of one embodiment of the invention.
Reference picture 1, included according to the epicyclic train of one embodiment of the invention：Be arranged in same axis
One planetary gearsets PG1, the second planetary gearsets PG2, third planet gear train PG3 and fourth planet gear train PG4；Input shaft
IS；Output shaft OS；It is connected to the first planetary gearsets PG1, the second planetary gearsets PG2, third planet gear train PG3 and the 4th
Eight rotary shaft TM1 to TM8 of planetary gearsets PG4 at least one rotate element；Four clutches as control element
C1 to C4 and two brake B1 and B2；And case of transmission H.
Therefore, the first planetary gearsets PG1, the second planetary gearsets PG2, the 3rd are passed through from the moment of torsion of input shaft IS inputs
Planetary gearsets PG3 and fourth planet gear train PG4 cooperation and change, and the moment of torsion changed passes by output shaft OS
Pass.
Each planetary gearsets since engine side according to the first planetary gearsets PG1, the second planetary gearsets PG2,
Third planet gear train PG3 and fourth planet gear train PG4 order are arranged.
Input shaft IS is input link, and the moment of torsion from engine crankshaft is carrying out torque conversion by torque converter
Afterwards, it is input into input shaft IS.
Output shaft OS is output link, its be arranged to it is parallel with input shaft IS, and by differential gear by driving torque
Transmit to driving wheel.
First planetary gearsets PG1 is single little gear planetary gearsets, and including the first sun gear S1, the first planet carrier
PC1 and the first ring gear R1, the first planet carrier PC1 are pivotably supported the first little gear P1, and the first little gear P1 and first is too
Sun wheel S1 external toothings, and the first ring gear R1 and the first little gear P1 internal messings.First sun gear S1, the first planet carrier PC1
With the first ring gear R1 respectively as the first rotate element N1, the second rotate element N2 and the 3rd rotate element N3.
Second planetary gearsets PG2 is single little gear planetary gearsets, and including the second sun gear S2, the second planet carrier
PC2 and the second ring gear R2, the second planet carrier PC2 are pivotably supported the second little gear P2, and the second little gear P2 and second is too
Sun wheel S2 external toothings, the second ring gear R2 and the second little gear P2 internal messings.Second sun gear S2, the second planet carrier PC2 and
Two ring gear R2 are respectively as the 4th rotate element N4, the 5th rotate element N5 and the 6th rotate element N6.
Third planet gear train PG3 is single little gear planetary gearsets, and including the 3rd sun gear S3, the third line carrier
PC3 and the 3rd ring gear R3, the third line carrier PC3 are pivotably supported third pinion P3, and third pinion P3 and the 3rd is too
Sun wheel S3 external toothings, the 3rd ring gear R3 and third pinion P3 internal messings.3rd sun gear S3, the third line carrier PC3 and
Three ring gear R3 are respectively as the 7th rotate element N7, the 8th rotate element N8 and the 9th rotate element N9.
Fourth planet gear train PG4 is single little gear planetary gearsets, and including the 4th sun gear S4, fourth line carrier
PC4 and the 4th ring gear R4, fourth line carrier PC4 are pivotably supported fourth pinion P4, and fourth pinion P4 and the 4th is too
Sun wheel S4 external toothings, the 4th ring gear R4 and fourth pinion P4 internal messings.4th sun gear S4, fourth line carrier PC4 and
Four ring gear R4 are respectively as the tenth rotate element N10, the 11st rotate element N11 and the 12nd rotate element N12.
Second rotate element N2 and the 4th rotate element N4 are connected directly to each other, the 3rd rotate element N3, the 6th rotation
Element N6 and the tenth rotate element N10 are connected directly to each other, and the 9th rotate element N9 and the 11st rotate element N11 that
This is directly connected so that the first planetary gearsets PG1, the second planetary gearsets PG2, third planet gear train PG3 and the 4th
Planetary gearsets PG4 includes eight axle TM1 to TM8.
Eight axle TM1 to TM8 will be further described in detail below.
Eight axle TM1 to TM8 can be by the first planetary gearsets PG1, the second planetary gearsets PG2, third planet tooth
The rotating member that multiple rotate elements in wheel group PG3 and fourth planet gear train PG4 rotate element are directly connected mutually,
Or to be selectively connected to the first planetary gearsets PG1, the second planetary gearsets PG2, third planet gear train PG3 and the
Four planetary gearsets PG4 any one rotate element and the rotation structure for carrying out transfer of torque with the rotation of any one rotate element
Part, or eight axle TM1 to TM8 can be by the first planetary gearsets PG1, the second planetary gearsets PG2, third planet gear
Group PG3 and fourth planet gear train PG4 any one rotate element optionally or be attached directly to case of transmission H with
Fix the fixing component of any one rotate element.
First axle TM1 is connected to the first rotate element N1 (the first sun gear S1), and is selectively connected to speed changer
Housing H, so as to which alternatively property retaining element is operated.
Second axle TM2 is connected to the second rotate element N2 (the first planet carrier PC1) and the 4th rotate element N4 (second sun
Take turns S2), and it is attached directly to input shaft IS.
3rd axle TM3 is connected to the 3rd rotate element N3 (the first ring gear R1), the 6th rotate element N6 (the second ring gears
) and the tenth rotate element N10 (the 4th sun gear S4) R2.
4th axle TM4 is connected to the 5th rotate element N5 (the second planet carrier PC2).
5th axle TM5 is connected to the 7th rotate element N7 (the 3rd sun gear S3), and is selectively connected to first axle
TM1 and it is selectively connected to the second axle TM2.
6th axle TM6 is connected to the 8th rotate element N8 (the third line carrier PC3), and is selectively connected to the 4th axle
TM4。
7th axle TM7 is connected to the 9th rotate element N9 (the 3rd ring gear R3) and the 11st rotate element N11 (fourth lines
Carrier PC4), and it is attached directly to output shaft OS.
8th axle TM8 is connected to the 12nd rotate element N12 (the 4th ring gear R4), and is selectively connected to the 6th
Axle TM6, and case of transmission H is selectively connected to, so as to which alternatively property retaining element is operated.
In addition, four clutches C1, C2, C3 and C4 are arranged in eight axle TM1 for including input shaft IS and output shaft OS
The part that any two axle to TM8 is selectively connected each other.
In addition, any one axle that two brakes B1 and B2 are arranged among eight axle TM1 to TM8 is selectively connected
To case of transmission H part.
Four clutch C1 to C4 and two brake B1 and B2 arrangement is described more fully below.
First clutch C1 is arranged between the second axle TM2 and the 5th axle TM5, and is selectively connected the second axle TM2
With the 5th axle TM5.
Second clutch C2 is arranged between first axle TM1 and the 5th axle TM5, and is selectively connected first axle TM1
With the 5th axle TM5.
3rd clutch C3 is arranged between the 4th axle TM4 and the 6th axle TM6, and is selectively connected the 4th axle TM4
With the 6th axle TM6.
4th clutch C4 is arranged between the 6th axle TM6 and the 8th axle TM8, and is selectively connected the 6th axle TM6
With the 8th axle TM8.
First brake B1 is arranged between first axle TM1 and case of transmission H, and is selectively connected first axle
TM1 and case of transmission H.
Second brake B2 is arranged between the 8th axle TM8 and case of transmission H, and is selectively connected the 8th axle
TM8 and case of transmission H.
Include first clutch C1, second clutch C2, the 3rd clutch C3 and the 4th clutch C4 and the first system
Dynamic device B1 and second brake B2 control element can be the frictional engagement unit operated by hydraulic pressure.Specifically, this
A little control elements can be, but be not limited to：Wet-type multi-disc friction element.In addition, these control elements can be to pass through electric signal
The joint unit of operation, for example, claw-type clutch, electric clutch, magnetic particle clutch etc..
Fig. 2 is the control element at each gear in the epicyclic train according to one embodiment of the invention
Operation diagram.
As shown in Fig. 2 according in the epicyclic train of one embodiment of the invention, in first clutch C1, second
Three controls among clutch C2, the 3rd clutch C3 and the 4th clutch C4 and the first brake B1 and second brake B2
Element processed is operated at each gear.
Operated simultaneously in the first forward range D1, second clutch C2, the 3rd clutch C3 and second brake B2.
The 5th axle TM5 that is operably connected in first axle TM1 by second clutch C2, and the 4th axle TM4 passes through
Three clutch C3's is operably connected in the state of the 6th axle TM6, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by second brake B2 operation, the 8th axle TM8 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the first forward range, and transmit the first forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
Operated simultaneously in the second forward range D2, first clutch C1, second clutch C2 and second brake B2.
The 5th axle TM5 that is operably connected in the second axle TM2 by first clutch C1, and first axle TM1 passes through
Two clutch C2's is operably connected in the state of the 5th axle TM5, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by second brake B2 operation, the 8th axle TM8 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the second forward range, and transmit the second forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
Operated simultaneously in the 3rd forward range D3, second clutch C2 and the first brake B1 and second brake B2.
First axle TM1 by second clutch C2 be operably connected to the 5th axle TM5 in the state of, input shaft IS torsion
Square is input to the second axle TM2.
In addition, by the first brake B1 and second brake B2 operation, first axle TM1 and the 8th axle TM8 are as solid
Element is determined to operate.Therefore, input shaft IS moment of torsion is switched to the 3rd forward range, and by being connected to the 7th axle TM7
Output shaft OS transmit the 3rd forward range.
Operated simultaneously in the 4th forward range D4, second clutch C2, the 4th clutch C4 and second brake B2.
The 5th axle TM5 that is operably connected in first axle TM1 by second clutch C2, and the 6th axle TM6 passes through
Four clutch C4's is operably connected in the state of the 8th axle TM8, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by second brake B2 operation, the 8th axle TM8 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the 4th forward range, and transmit the 4th forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
Operated simultaneously in the 5th forward range D5, second clutch C2, the 4th clutch C4 and the first brake B1.
The 5th axle TM5 that is operably connected in first axle TM1 by second clutch C2, and the 6th axle TM6 passes through
Four clutch C4's is operably connected in the state of the 8th axle TM8, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by the first brake B1 operation, first axle TM1 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the 5th forward range, and transmit the 5th forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
Operated simultaneously in the 6th forward range D6, first clutch C1, second clutch C2 and the 4th clutch C4.
The 5th axle TM5 that is operably connected in the second axle TM2 by first clutch C1, first axle TM1 by second from
Clutch C2's is operably connected to the 5th axle TM5, and the 6th axle TM6 is operably connected to the 8th axle by the 4th clutch C4
In the state of TM8, input shaft IS moment of torsion is input to the second axle TM2.
In this case, the first planetary gearsets PG1, the second planetary gearsets PG2, third planet gear train PG3 and
Fourth planet gear train PG4 turns into lock-out state.Therefore, input shaft IS moment of torsion is switched to the 6th forward range, and leads to
Cross and be connected to the 7th axle TM7 output shaft OS to transmit the 6th forward range.In the 6th forward range D6, output and input shaft IS
Rotary speed identical rotary speed.
Operated simultaneously in the 7th forward range D7, first clutch C1, the 4th clutch C4 and the first brake B1.
The 5th axle TM5 that is operably connected in the second axle TM2 by first clutch C1, and the 6th axle TM6 passes through
Four clutch C4's is operably connected in the state of the 8th axle TM8, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by the first brake B1 operation, first axle TM1 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the 7th forward range, and transmit the 7th forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
Operated simultaneously in the 8th forward range D8, the 3rd clutch C3, the 4th clutch C4 and the first brake B1.
The 6th axle TM6 that is operably connected in the 4th axle TM4 by the 3rd clutch C3, and the 6th axle TM6 passes through
Four clutch C4's is operably connected in the state of the 8th axle TM8, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by the first brake B1 operation, first axle TM1 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the 8th forward range, and transmit the 8th forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
Operated simultaneously in the 9th forward range D9, first clutch C1, the 3rd clutch C3 and the first brake B1.
The 5th axle TM5 that is operably connected in the second axle TM2 by first clutch C1, and the 4th axle TM4 passes through
Three clutch C3's is operably connected in the state of the 6th axle TM6, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by the first brake B1 operation, first axle TM1 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the 9th forward range, and transmit the 9th forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
Operated simultaneously in the tenth forward range D10, second clutch C2, the 3rd clutch C3 and the first brake B1.
The 5th axle TM5 that is operably connected in first axle TM1 by second clutch C2, and the 4th axle TM4 passes through
Three clutch C3's is operably connected in the state of the 6th axle TM6, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by the first brake B1 operation, first axle TM1 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to the tenth forward range, and transmit the tenth forward gear by being connected to the 7th axle TM7 output shaft OS
Position.
In reversing gear REV, the 3rd clutch C3, the 4th clutch C4 and second brake B2 are operated simultaneously.
The 6th axle TM6 that is operably connected in the 4th axle TM4 by the 3rd clutch C3, and the 6th axle TM6 passes through
Four clutch C4's is operably connected in the state of the 8th axle TM8, and input shaft IS moment of torsion is input to the second axle TM2.
In addition, by second brake B2 operation, the 8th axle TM8 operates as retaining element.Therefore, input shaft IS
Moment of torsion be switched to reversing gear, and reversing gear is transmitted by being connected to the 7th axle TM7 output shaft OS, so as to make
To reversely rotate speed.
According to the epicyclic train of one embodiment of the invention by combining four planetary gearsets PG1, PG2, PG3
With PG4, four clutches C1, C2, C3 and C4 and two brakes B1 and B2, so as to realize at least ten forward ranges
With a reversing gear.
In addition, every kind of rotary speed of engine can be directed to according to the epicyclic train of one embodiment of the invention
And realize suitable gear.Especially, can be improved by using the operating point positioned at the low rotary speed region of engine
The driving quietness of vehicle.
In addition, epicyclic train in accordance with an exemplary embodiment of the invention can improve the drive efficiency of engine,
And power transfer performance and fuel efficiency can be improved.
What description of the invention was substantially merely exemplary, therefore, the substantive change for not departing from the present invention is included in
In the scope of the present invention.This change is not to be seen as the deviation to the spirit and scope of the present invention.
Claims (10)
1. a kind of epicyclic train of automatic transmission for vehicle, it includes：
Input shaft, it is configured to the moment of torsion for receiving engine；
Output shaft, it is configured as output to the moment of torsion changed；
First planetary gearsets, it has the first rotate element, the second rotate element and the 3rd rotate element；
Second planetary gearsets, it has the 4th rotate element, the 5th rotate element and the 6th rotate element；
Third planet gear train, it has the 7th rotate element, the 8th rotate element and the 9th rotate element；
Fourth planet gear train, it has the tenth rotate element, the 11st rotate element and the 12nd rotate element；
First axle, it is connected to the first rotate element；
Second axle, it is connected to the second rotate element and the 4th rotate element, and is connected to input shaft；
3rd axle, it is connected to the 3rd rotate element, the 6th rotate element and the tenth rotate element；
4th axle, it is connected to the 5th rotate element；
5th axle, it is connected to the 7th rotate element, and is selectively connected to first axle and is selectively connected to second
Axle；
6th axle, it is connected to the 8th rotate element, and is selectively connected to the 4th axle；
7th axle, it is connected to the 9th rotate element and the 11st rotate element, and is connected to output shaft；And
8th axle, it is connected to the 12nd rotate element, and is selectively connected to the 6th axle.
2. the epicyclic train of the automatic transmission according to claim 1 for vehicle, wherein, the first axle and
Each in eight axles is selectively connected to case of transmission.
3. the epicyclic train of the automatic transmission according to claim 1 for vehicle, wherein：
The first rotate element, the second rotate element and the 3rd rotate element of first planetary gearsets are respectively first sun
Wheel, the first planet carrier and the first ring gear；
The 4th rotate element, the 5th rotate element and the 6th rotate element of second planetary gearsets are respectively second sun
Wheel, the second planet carrier and the second ring gear；
The 7th rotate element, the 8th rotate element and the 9th rotate element of the third planet gear train are respectively the 3rd sun
Wheel, the third line carrier and the 3rd ring gear；
The tenth rotate element, the 11st rotate element and the 12nd rotate element of the fourth planet gear train are respectively the 4th
Sun gear, fourth line carrier and the 4th ring gear.
4. the epicyclic train of the automatic transmission according to claim 1 for vehicle, wherein, the first planet tooth
Wheel group, the second planetary gearsets, third planet gear train and fourth planet gear train press the first planet tooth respectively from engine side
Wheel group, the second planetary gearsets, the order of third planet gear train and fourth planet gear train arrangement.
5. the epicyclic train of the automatic transmission according to claim 2 for vehicle, further comprises：
First clutch, it is selectively connected second axle and the 5th axle；
Second clutch, it is selectively connected the first axle and the 5th axle；
3rd clutch, it is selectively connected the 4th axle and the 6th axle；
4th clutch, it is selectively connected the 6th axle and the 8th axle；
First brake, it is selectively connected the first axle and case of transmission；And
Second brake, it is selectively connected the 8th axle and case of transmission.
6. a kind of epicyclic train of automatic transmission for vehicle, it includes：
Input shaft, it is configured to the moment of torsion for receiving engine；
Output shaft, it is configured as output to the moment of torsion changed；
First planetary gearsets, it has the first rotate element, the second rotate element and the 3rd rotate element；
Second planetary gearsets, it has the 4th rotate element, the 5th rotate element and the 6th rotate element；
Third planet gear train, it has the 7th rotate element, the 8th rotate element and the 9th rotate element；And
Fourth planet gear train, it has the tenth rotate element, the 11st rotate element and the 12nd rotate element；
Wherein, the input is pivotally connected to the second rotate element；
The output is pivotally connected to the 11st rotate element；
Second rotate element is connected to the 4th rotate element；
3rd rotate element is connected to the 6th rotate element and the tenth rotate element；
9th rotate element is connected to the 11st rotate element；
7th rotate element is selectively connected to the first rotate element and is selectively connected to the second rotate element；
8th rotate element is selectively connected to the 5th rotate element；
12nd rotate element is selectively connected to the 8th rotate element.
7. the epicyclic train of the automatic transmission according to claim 6 for vehicle, wherein, the first rotate element and
Each in 12nd rotate element is selectively connected to case of transmission.
8. the epicyclic train of the automatic transmission according to claim 6 for vehicle, wherein：
The first rotate element, the second rotate element and the 3rd rotate element of first planetary gearsets are respectively first sun
Wheel, the first planet carrier and the first ring gear；
The 4th rotate element, the 5th rotate element and the 6th rotate element of second planetary gearsets are respectively second sun
Wheel, the second planet carrier and the second ring gear；
The 7th rotate element, the 8th rotate element and the 9th rotate element of the third planet gear train are respectively the 3rd sun
Wheel, the third line carrier and the 3rd ring gear；
The tenth rotate element, the 11st rotate element and the 12nd rotate element of the fourth planet gear train are respectively the 4th
Sun gear, fourth line carrier and the 4th ring gear.
9. the epicyclic train of the automatic transmission according to claim 6 for vehicle, wherein, the first planet tooth
Wheel group, the second planetary gearsets, third planet gear train and fourth planet gear train press the first planet tooth respectively from engine side
Wheel group, the second planetary gearsets, the order of third planet gear train and fourth planet gear train arrangement.
10. the epicyclic train of the automatic transmission according to claim 7 for vehicle, further comprises：
First clutch, it is selectively connected the 4th rotate element and the 7th rotate element；
Second clutch, it is selectively connected the first rotate element and the 7th rotate element；
3rd clutch, it is selectively connected the 5th rotate element and the 8th rotate element；
4th clutch, it is selectively connected the 8th rotate element and the 12nd rotate element；
First brake, it is selectively connected the first rotate element and case of transmission；And
Second brake, it is selectively connected the 12nd rotate element and case of transmission.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0117351 | 2016-09-12 | ||
| KR1020160117351A KR101886098B1 (en) | 2016-09-12 | 2016-09-12 | Planetary gear train of automatic transmission for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107816523A true CN107816523A (en) | 2018-03-20 |
| CN107816523B CN107816523B (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611204722.4A Active CN107816523B (en) | 2016-09-12 | 2016-12-23 | Planetary gear train of automatic transmission for vehicle |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9970514B2 (en) |
| KR (1) | KR101886098B1 (en) |
| CN (1) | CN107816523B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102417353B1 (en) * | 2017-09-20 | 2022-07-05 | 현대자동차 주식회사 | Planetary gear train of automatic transmission for vehicles |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101886098B1 (en) | 2018-08-07 |
| US20180073608A1 (en) | 2018-03-15 |
| US9970514B2 (en) | 2018-05-15 |
| KR20180029440A (en) | 2018-03-21 |
| CN107816523B (en) | 2021-02-05 |
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